Wordle
This number equaling 6.02x1023 represents the amount of particles/atoms/molecules in a mole.
What is Avogadro's number?
How many moles of atoms in 2 moles of NO3
8 moles of atoms
The name for the simplest form of a formula
What is empirical formula?
This term describes a compound that contains water chemically bonded in a crystal structure.
hydrate
3Mg + N2 → Mg3N2
0.3557 moles of Mg are reacted, this is how many moles of Mg3N2 will be produced.
0.1186 mol
This is a way to relate two different substances in a balanced equation
What is stoichiometry?
You are given 2 moles of CO2. How many oxygen atoms do you have?
2.41×1024 oxygen atoms.
What is the empirical formula for CH4? C2H6?
CH4 (molecular and empirical are the same) , CH3
This is the percent composition by mass of strontium in SrO.
What is 84.56% Sr?
4 NH3 + 6 NO → 5 N2 + 6 H2O
49.841 liters of NO are reacted, this is how many liters of NH3 will also be reacted at STP.
What is 33.227 liters NH3?
This is going from one unit to another, with units cancelling.
dimensional analysis
You are given: 12.8 g manganese (II) sulfate and want it in particles.
5.103 x 1022 particles
A compound is 40.0% carbon, 6.7% hydrogen, and 53.3% oxygen. What is the empirical formula?
CH₂O
Why do we heat hydrates more than once, and what is the substance called after you heat it?
Balance!
2 CH3OH + 3 O2 → 2 CO2 + 4 H2O
153.48 grams CO2 are produced. This is how many grams of CH3OH were reacted.
What is 111.74 grams CH3OH?
The amount of grams in one mole.
What is molar mass?
You are given: 6.76 x 1020 particles of silver carbonate and want liters at STP.
0.02515 L at STP
A compound has an empirical formula of CH₂O and a molar mass of 180 g/mol. What is the molecular formula?
C6H12O6
What is the IUPAC name for FeSO4 * 7 H2O?
what is iron (II) sulfate heptahydrate
Fe2O3 + 3 H2SO4 → Fe2(SO4)3 + 3 H2O
176.33 grams of Fe2O3 are reacted, this is how many grams of Fe2(SO4)3 will be produced.
What is 441.55 grams Fe2(SO4)3?
A sample of a compound contains 56.0 grams of iron, 24.0 grams of carbon, and 64.0 grams of oxygen.
What is the mole ratio of iron to carbon to oxygen in this compound?
1:2:4
You are given 20 grams of oxygen gas at STP, how many liters do you have?
14 L
A compound is 52.2% carbon, 13.0% hydrogen, and 34.8% oxygen. Its molar mass is 92 g/mol. What is the molecular formula?
C4H12O2
A 12.50 g sample of a hydrate is heated to constant mass and leaves 8.25 g of anhydrous salt. Determine the % mass of water lost.
34.0% water
4 Si2H3 + 11 O2 → 8 SiO2 + 6 H2O
9.3 × 1022 particles of O2 are reacted, this is how many grams of SiO2 that will be produced.
What is 6.8 grams SiO2?